title: [Computed serial densitometry of the tissue components of renal angiomyolipoma. A new radiohistologic method of in vivo pathologic diagnosis].
abstract: Computerised serial densitometry (CSD) of renal angiomyolipoma (AML) and its three tissue components was done in order to find out whether this procedure could help in differential diagnosis and provide better data for the understanding of AML presentation in CT imaging. It was found that AML detection in plain scan tomography requires a fat fraction of more than 50%. Angiomyolipomas with a fat fraction of less than 50% need computerised serial densitometry to enable differentiation from other unidentified tumours. The criteria to be used in these cases are 1) the low curve level and 2) the presence and slim shape of the initial circulatory peak. The principle of using standard densitometric curves of single tissue components and cells in in vivo tissue analysis might gain significance in the noninvasive, computerised qualitative and quantitative analysis of the composition of tumours and organs thus creating new possibilities for the diagnosis, follow-up and prognosis of diseases.
authors.affiliation: Röntgen- und Ultraschallabteilung, Policlinica de Amistad, Asunción, Paraguay.
authors.forename: E A
authors.initials: EA
authors.lastname: Winkler
mesh_terms: D006391:Hemangioma / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D007668:Kidney / Q000000981:diagnostic imaging / Q000473:pathology*; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008067:Lipoma / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed / Q000379:methods*
vernacular_title: Die Computer-Serien-Densitometrie der Gewebskomponenten des Nierenangiomyolipoms. Eine neue radiohistologische Methode zur pathologischen In-vivo-Diagnostik.